From: Fam Zheng <famz@redhat.com>
To: qemu-devel@nongnu.org
Cc: kwolf@redhat.com, pbonzini@redhat.com, stefanha@redhat.com,
qemu-block@nongnu.org
Subject: [Qemu-devel] [PATCH v5 00/12] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end
Date: Wed, 21 Oct 2015 10:06:37 +0800 [thread overview]
Message-ID: <1445393209-26545-1-git-send-email-famz@redhat.com> (raw)
v5: Rebase onto Kevin's block tree.
v4: Rebase on to master so fix the "bdrv_move_feature_fields" issue.
v3: Call bdrv_drain unconditionally in bdrv_drained_begin.
Document the internal I/O implications between bdrv_drain_begin and end.
The nested aio_poll()'s in block layer has a bug that new r/w requests from
ioeventfds and nbd exports are processed, which might break the caller's
semantics (qmp_transaction) or even pointers (bdrv_reopen).
Fam Zheng (12):
aio: Add "is_external" flag for event handlers
nbd: Mark fd handlers client type as "external"
dataplane: Mark host notifiers' client type as "external"
aio: introduce aio_{disable,enable}_external
block: Introduce "drained begin/end" API
block: Add "drained begin/end" for transactional external snapshot
block: Add "drained begin/end" for transactional backup
block: Add "drained begin/end" for transactional blockdev-backup
block: Add "drained begin/end" for internal snapshot
block: Introduce BlockDriver.bdrv_drain callback
qed: Implement .bdrv_drain
tests: Add test case for aio_disable_external
aio-posix.c | 9 ++++-
aio-win32.c | 8 +++-
async.c | 3 +-
block/curl.c | 14 ++++---
block/io.c | 23 +++++++++++-
block/iscsi.c | 9 ++---
block/linux-aio.c | 5 ++-
block/nbd-client.c | 10 +++--
block/nfs.c | 17 ++++-----
block/qed.c | 7 ++++
block/sheepdog.c | 38 ++++++++++++-------
block/ssh.c | 5 ++-
block/win32-aio.c | 5 ++-
blockdev.c | 37 ++++++++++++++++---
hw/block/dataplane/virtio-blk.c | 5 ++-
hw/scsi/virtio-scsi-dataplane.c | 22 +++++++----
include/block/aio.h | 39 ++++++++++++++++++++
include/block/block.h | 26 +++++++++++++
include/block/block_int.h | 8 ++++
iohandler.c | 3 +-
nbd.c | 4 +-
tests/test-aio.c | 82 ++++++++++++++++++++++++++++-------------
22 files changed, 286 insertions(+), 93 deletions(-)
--
2.4.3
next reply other threads:[~2015-10-21 2:07 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 2:06 Fam Zheng [this message]
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 01/12] aio: Add "is_external" flag for event handlers Fam Zheng
2015-10-21 15:21 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 02/12] nbd: Mark fd handlers client type as "external" Fam Zheng
2015-10-21 15:21 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 03/12] dataplane: Mark host notifiers' " Fam Zheng
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 04/12] aio: introduce aio_{disable, enable}_external Fam Zheng
2015-10-21 15:56 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-22 2:11 ` Fam Zheng
2015-10-22 2:20 ` Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 05/12] block: Introduce "drained begin/end" API Fam Zheng
2015-10-21 16:11 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-22 2:20 ` Fam Zheng
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 06/12] block: Add "drained begin/end" for transactional external snapshot Fam Zheng
2015-10-21 17:18 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 07/12] block: Add "drained begin/end" for transactional backup Fam Zheng
2015-10-21 17:20 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 08/12] block: Add "drained begin/end" for transactional blockdev-backup Fam Zheng
2015-10-21 17:25 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 09/12] block: Add "drained begin/end" for internal snapshot Fam Zheng
2015-10-21 13:37 ` Kevin Wolf
2015-10-21 18:22 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 10/12] block: Introduce BlockDriver.bdrv_drain callback Fam Zheng
2015-10-21 18:25 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 11/12] qed: Implement .bdrv_drain Fam Zheng
2015-10-22 2:20 ` [Qemu-devel] [Qemu-block] " Jeff Cody
2015-10-22 2:59 ` Fam Zheng
2015-10-21 2:06 ` [Qemu-devel] [PATCH v5 12/12] tests: Add test case for aio_disable_external Fam Zheng
2015-10-21 13:40 ` [Qemu-devel] [PATCH v5 00/12] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end Kevin Wolf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1445393209-26545-1-git-send-email-famz@redhat.com \
--to=famz@redhat.com \
--cc=kwolf@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-block@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=stefanha@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.